title: Embryonal rhabdomyosarcoma in a Rothschild's giraffe (Giraffa camelopardalis rothschildi).
abstract: Abstract: A 3-yr-old male Rothschild's giraffe (Giraffa camelopardalis rothschildi) presented for acute swelling caudomedial to the left parietal horn. Following initial diagnostics and supportive treatment, the mass was surgically resected and intralesional chemotherapy was administered. Despite treatment, the giraffe's condition worsened and euthanasia was performed. Gross necropsy revealed neoplastic invasion and destruction of underlying parietal bone, adjacent horn base, and sinuses, and metastases in the tracheobronchial and mandibular lymph nodes and lung. Histologically, the tumor was composed of packets of anaplastic round cells. Immunohistochemical studies further characterized the tumor as an embryonal rhabdomyosarcoma. This is the first reported case of rhabdomyosarcoma in a giraffe.
authors.affiliation: Smithsonian Institution's National Zoological Park, 3001 Connecticut Avenue NW, Washington, DC 20008-2598, USA. margarita_woc@yahoo.com
authors.forename: Margarita
authors.initials: M
authors.lastname: Woc-Colburn
authors.forename: Suzan
authors.initials: S
authors.lastname: Murray
authors.forename: Nancy
authors.initials: N
authors.lastname: Boedeker
authors.forename: Tabitha
authors.initials: T
authors.lastname: Viner
authors.forename: Michelle L
authors.initials: ML
authors.lastname: Fleetwood
authors.forename: Tony C
authors.initials: TC
authors.lastname: Barthel
authors.forename: Kurt D
authors.initials: KD
authors.lastname: Newman
authors.forename: Carlos R
authors.initials: CR
authors.lastname: Sanchez
mesh_terms: D000818:Animals; D000866:Antelopes; D008297:Male; D018233:Rhabdomyosarcoma, Embryonal / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D012888:Skull Neoplasms / Q000473:pathology / Q000601:surgery / Q000662:veterinary*